Tunzu
[también conocido como Dugusa, Duguza]Clasificación: Niger-Congo
·con amenaza de extinción
Clasificación: Niger-Congo
·con amenaza de extinción
Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·
Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/
Atlas of the World’s Languages in Danger . Christopher Moseley (ed.) (2010) · UNESCO Publishing http://www.unesco.org/culture/en/endangeredlanguages/atlas
World Oral Literature Project . http://www.oralliterature.org
Notes on the Tunzu (Duguza) people and language . Roger M. Blench and John Garah Nengel (2004) · http://www.rogerblench.info/Language/Niger-Congo/BC/Kainji/East%%20Kainji/Tunzu/Notes%%20on%%20the%%20Tunzu.pdf